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    • 3. 发明申请
    • Monomethine dye compound, optical information recording medium utilizing the compound and process for producing the same
    • 单甲基染料化合物,利用该化合物的光学信息记录介质及其制备方法
    • US20090061141A1
    • 2009-03-05
    • US10594589
    • 2005-03-30
    • Daisuke MorishitaMamoru UchidaTakuo KodairaIsao OkitsuHiroshi HiratsukaHiroaki HoriuchiMaiko Fukita
    • Daisuke MorishitaMamoru UchidaTakuo KodairaIsao OkitsuHiroshi HiratsukaHiroaki HoriuchiMaiko Fukita
    • B32B3/02C07D413/02
    • C09B23/04G11B7/246G11B7/2467G11B7/2472G11B7/2495G11B7/2531G11B7/2533G11B7/2534G11B7/256G11B7/2585G11B7/266
    • [Problems] To provide a monomethine dye compound that enables formation of a thin film with high refractive index and excellent optical properties through formation of a homogeneous thin film of dye molecule J-association complex by easy means (spin coating technique) and that has high sensitivity and excels in short mark recording capability so as to be suitable for high speed recording and high density recording, and further to provide an optical information recording medium utilizing the monomethine dye compound and a process for producing the same.[Means for Solving Problems] Attention has been focused on employment of a spin coating technique so that a homogeneous thin film can be easily formed through coating; on using of a dye material capable of forming a J-association complex to thereby realize excellent optical properties (high refractive index); on using of an oxocyanine dye of high solubility as the dye material so as to enable employment of a solvent free from substrate erosion; on using of a dye exhibiting a large difference between refractive index before recording and refractive index after recording, the decomposition of the dye brought about by an endothermal reaction; etc. There is provided a monomethine dye compound of FIG. 1 characterized in that it is applicable onto a substrate by a spin coating technique.
    • [问题]提供能够形成具有高折射率的薄膜和优异的光学性能的单甲基染料化合物,通过简单的手段(旋涂技术)形成染料分子J缔合络合物的均匀薄膜,并且具有高的 敏感性和优异的短标记记录能力,以适用于高速记录和高密度记录,并且还提供了利用单甲基染料化合物的光学信息记录介质及其制备方法。 [解决问题的手段]注意力集中在旋涂技术的使用上,从而可以通过涂布容易地形成均匀的薄膜; 使用能够形成J缔合络合物的染料,从而实现优异的光学性质(高折射率); 使用高溶解度的氧杂菁染料作为染料材料,以便能够使用无基底侵蚀的溶剂; 在使用在记录前的折射率和记录后的折射率之间显示出很大差异的染料时,由吸热引起的染料的分解; 提供图1的单甲基染料化合物。 1,其特征在于其可通过旋涂技术应用于基底。
    • 8. 发明申请
    • OPTICAL INFORMATON RECORDING MEDIUM
    • 光信息记录介质
    • US20080260984A1
    • 2008-10-23
    • US12051627
    • 2008-03-19
    • Takuo KodairaIsao MatsudaTakeshi OtsuFumi Hara
    • Takuo KodairaIsao MatsudaTakeshi OtsuFumi Hara
    • B32B3/02B32B37/00
    • G11B7/246G11B7/2467G11B7/2472G11B7/2492G11B7/259Y10T428/21
    • In a write-once optical information recording medium including a substrate, a groove-shaped track such as a guiding groove, and an optical recording layer containing an organic dye material and disposed on the guiding groove, wherein information is recorded by irradiating a short-wavelength laser beam from a surface of the optical recording layer opposite the substrate, and the information can be reproduced by reading a change in the reflected light of a short-wavelength laser beam after the information recording, an unrecorded portion of the optical recording layer has a lower reflectance than a pit portion formed after recording to a portion of the optical recording layer, the optical recording layer has a refractive index n in the range of about 1.2 to about 2.1 before recording and an extinction coefficient k in the range of about 0.01 to about 0.7 before recording, and n+k is in the range of about 1.4 to about 2.1.
    • 在包括基板,诸如引导槽的凹槽形轨迹和包含有机染料材料并且设置在引导槽上的光学记录层的一次写入光信息记录介质中,其中通过照射短路来记录信息, 可以通过读取信息记录后的短波长激光束的反射光的变化来重现信息,光记录层的未记录部分具有 比在记录到光记录层的一部分之后形成的凹坑部分更低的反射率,光记录层在记录之前的折射率n在约1.2至约2.1的范围内,并且消光系数k在约0.01的范围内 在记录之前为约0.7,并且n + k在约1.4至约2.1的范围内。
    • 10. 发明申请
    • COLORING MATTER FOR OPTICAL INFORMATION RECORDING MEDIUM AND OPTICAL INFORMATION RECORDING MEDIUM
    • 光信息记录介质和光信息记录介质的着色
    • US20110129635A1
    • 2011-06-02
    • US13054918
    • 2009-07-24
    • Takuo KodairaTakeo Tsuzuki
    • Takuo KodairaTakeo Tsuzuki
    • G11B7/246C09B45/00
    • C07D405/12C07D417/12C09B29/3678C09B45/18C09B45/20C09B45/22C09B45/34G11B7/2467G11B7/2492
    • Disclosed is an optical information recording medium whose recording method is In-Groove recording, wherein such optical information recording medium offers good recording characteristics associated with high modulation degree and low jitter characteristics. This optical information recording medium includes: a disc-shaped substrate 2 having a through hole at the center and a guide groove 3 formed helically on one side; a reflective layer 4 formed on top of the aforementioned guide grooves 3 on the aforementioned substrate 2; a recording layer 5 formed on top of the aforementioned reflective layer 4 and made of an organic substance containing dye; a protective layer 6 formed on top of the aforementioned recording layer 5; and a light transmissive layer 6 formed on top of the aforementioned protective layer 6. The recording layer 5 contains an organic dye having a structure expressed by (Chemical Formula 1) and a functional group expressed by (Chemical Formula 2).
    • 公开了一种其记录方法为凹槽内记录的光学信息记录介质,其中这种光学信息记录介质具有与高调制度和低抖动特性相关的良好的记录特性。 该光信息记录介质包括:在中心具有通孔的圆盘状基板2和在一侧上螺旋形成的引导槽3; 形成在上述基板2上的上述引导槽3的上方的反射层4; 形成在上述反射层4的顶部并由含有染料的有机物构成的记录层5; 形成在上述记录层5顶部的保护层6; 和形成在上述保护层6的顶部的透光层6.记录层5含有具有由(化学式1)表示的结构和由(化学式2)表示的官能团的有机染料。